Shoe for window hinge



July 16, 1963 T. R. EWING SHOE FOR wmnow HINGE Filed Aug. 8, 1962 FIE: E

INVENTOR 7710M: k fax/# FILEZJ.

5 2/ Ln Q [74 A EWE EFLWFIEE wl a J 4/ 5% m 1:; u 1 0/ K United States Patent 3,097,402 SHOE FOR WINDOW HINGE Thomas R. Ewing, Treco Products Inc., Bayport, Minn. Filed Aug. 8, 1962, Ser. No. 215,700 4 Claims. (Cl. 20-42) This invention relates to improvement in a window hinge structure for awning or hopper type of window sash. More specifically the invention herein relates to improvement in a shoe for such a hinge structure. Reference is had to applicants application for US. Letters Patent, Serial No. 37,695, filed June 21, 1960 on an invention in Window Hinge Structure, now Patent No. 3,052,931, patented September 1 1, 1962. The hinge structure generally described herein is substantially the same as that in said application.

It is an object of the invention herein to provide a relatively trouble-free shoe for a window hinge of the type indicated, said shoe being constructed to have varying degrees of frictional engagement in connection with the channel forming a track for said shoe.

It is a 'more specific object of the invention herein to provide a shoe for a window hinge of the type indicated, said shoe being adjustable to maintain a certain degree of slidable frictional engagement with a cooperating runner as may be desired to hold the sash in any desired position.

These and other objects and advantages of the invention will be fully set forth in the following description made in connection with the accompanying drawings in which like reference characters refer to similar parts throughout the several views and in which:

FIG. 1 is a broken view in vertical section of a window frame with a sash and supporting hinge in open position;

FIG. 2 is a fragmentary view in horizontal section on an enlarged scale taken on line 2--2 of FIG. 1 as indicated by the arrows, with the sash indicated as being in closed position;

FIG. 3 is a fragmentary view in front elevation of applicants shoe on an enlarged scale with portions thereof in dotted line;

FIG. 4 is a view similar to that in FIG. 3 in side elevation;

FIG. 5 is a view in horizontal section on an enlarged scale taken on line 5-5 of FIG. 3, as indicated by the arrows;

FIG. 6 is a view similar to that in FIG. 5 with portions thereof in different position; and

FIG. 7 is a top plan view of applicants shoe on a somewhat enlarged scale in detached position with a portion thereof being shown in dotted line.

Referring to the drawings, a broken view in vertical section of a window frame 10 is shown comprising a sill 12, a cap strip 13 and a jamb 14. The supporting structure for said frame is of conventional design and not here described. Mounted within said window frame is a window sash 18 of conventional design with a major portion thereof being broken away and comprising an upper rail 20 and stiles 21.

Only suflicient of the window frame and sash structures are indicated for a showing of applicants hinge structure in operating position.

Said hinge structure indicated in its entirety by the character 25 comprises a piece of window frame hardware forming an elongated frame or plate member 28 vertically disposed in operating position and having an upstanding right-angled side portion 29 extending the full length thereof having an inward reversely curved portion 30 forming a lip or flange and functioning as a track and having its free end spaced from said plate member 28. Thus a channel 31 is formed between the flange 3,097,402 Patented July 16, 1963 30 and the right-angled side portion 29. Said frame member 28 will be secured as by screws 32.

An arm 34 comprising an elongated plate member is is secured adjacent one end of the sash 18, as indicated in FIG. 1, secured by screws 32 and having an arm 36 having one end pivoted thereto nearer the outer end thereof as illustrated. Said arm 36 has its other end pivoted to said plate member 28 adjacent the lower end thereof. The inner end of said arm 34 is pivoted by a rivet 39 to a shoe 40* slidably mounted within said plate member 28.

Applicants hinge structure is described only with respect to one side of the window frame and one end of the sash. It will be understood that a mirror copy of the described structure will be present at the other side of said window frame and other end of said sash.

Said shoe 40 comprises a relatively flat elongated body portion 42 having a downwardly disposed reversely curved portion at one side thereof forming cars 43, 44 and 45, with said ears being separated by transverse notches, as will hereinafter be indicated. Said ears form a groove or channel 47. With reference to FIGS. 2 and 5, said channel 47 receives therein the flange 30 of said plate member 28, and the ears 43, 44 and 45 are disposed within the channel 3 1. Said portion 42 is provided with apertures 49 for the disposal of screws therethrou-gh.

Centrally longitudinally of said body portion 42 is a recessed portion forming an indentation 50 having the bottom thereof inclined downwardly away from said channel 47, as indicated in FIGS. 5 and 6, and forming a depending shoulder 51.

Underlying centrally longitudinally said body portion 42 is a plate member 52 having at one end thereof arm portions 53 and 54 extending respectively between said ears 4344 and 4445. Said ears are separated by slots formed therebetween. At the other or outer side of said plate member 52 is a depending flange or leg portion 56. Pivotally linking said body portion 42 and said plate member 52 is a cam pin 58 in the form of a rivet having a shank 60, a lower end portion 61 riding on the under surface of the plate member 52 and a slotted head 59 having an inclined under surface forming a cam shoulder 59a. The angle of inclination of said shoulder 59a is the same as that of the indentation 50 in one direction as indicated in FIG. 5, and has an angular relation thereto in reverse direction, as indicated in FIG. 6.

Operation The installation and operation of applicants hinge structure generally is believed to be obvious to one skilled in the art from the illustration in FIG. 1.

Applicants particular improvement is present in his shoe structure indicated generally by the character 40.

It is seen from FIG. 1 that the sash 18 is pivoted at its upper rail portion to said shoe 40 and at its side portion to the arm 36 for sliding and swinging movement for pcsitioning thereof in open or closed positions.

With particular reference to FIG. 5, it is seen that the extended arms 53 and 54 of the plate member 52 underlie the under edge portion of the flange 30 and the ear portions 4345 of the plate member 42 are disposed within the channel 31. The cam rivet 58 is positioned to have the angle of its shoulder 59a coincide with the angle of the recessed or indented portion 50. In this position the arms 53 and 54 are free of said flange portion 30 and the shoe will slide freely longitudinally of said member 28.

With reference to FIG. 6, when the cam rivet 58 is rotated degrees from its position as shown in FIG. 5, the angle of the shoulder 59a will have an angular relation to the angle of inclination of the indented portion 50 which will in effect raise the shank and lower end portion of the rivet relative to said plate member 52 and thus pivoting the arms 53 and 54 of said plate member into engagement wtih said flange 30. Thus a locked position is attained between the shoe 40 and the plate or frame member 28.

Said rivet 58 in practice will be rotated between the two extreme points indicated to a point at which the shoe 40 will slide readily relative to the track formed by the flange whereby it will have suflicient frictional engagement with said track whereby said sash will remain in any position to which it may be put. The rotation of said rivet 58 is in no way afifected by the engagement between said track or flange 30 and the arms 53 and 54. Said arms and the plate member will in no way cause a rotation of the cam rivet 58 so as to change the degree of engagement between the plate member 52 and said flange Stl, or more broadly between the shoe 40 and the frame or plate member 28.

Said cam rivet 58 in having a slotted head is readily rotated, but once positioned it need not thereafter be readjusted. The members 4345 ride freely in the groove or channel 31 and sufiiciently so that no clogging effect will take place in said channel as by the accumulation of dirt. Said channel in practice has been found to be in effect self cleaning. There is suflicient surface engagement between the arms 53 and 54 and the edge surface of the flange or track 30 so that a good holding engagement is effected between the same while yet allowing a ready movement of the sash 18 to a desired position.

Thus it is seen that I have provided a simple and effective shoe structure in connection with a window hinge structure of the type indicated.

It will of course be understood that various changes may be made in the form, details, arrangement and proportions of the parts, without departing from the scope of applicants invention which, generally stated, consists in a device capable of carrying out the objects above set forth, in the parts and combinations of parts disclosed and defined in the appended claims.

What is claimed is:

1. A hinge structure in connection with a window frame having an awning type window sash comprising an elongated plate member attached to a side portion of said window frame,

a shoe slidably connected to said plate member,

said sash at its upper rail portion being pivoted to said shoe,

an arm linking said sash and said side of said window frame below the point of travel of said shoe,

said elongated plate member comprising a side portion angled upwardly and reversely curved inwardly to form a channel and a depending flange spaced at its free end from the base of said plate member and forming a track,

said shoe comprising a body portion formed as a plate member having a downwardly angled outwardly reversely curved side portion forming a channel,

said curved side portion of said shoe having transverse slots therein forming spaced ears of said curved side portion,

said ears being disposed in said channel of said first mentioned plate member and said track being disposed in said channel of said shoe,

a plate member underlying said body portion having arm portions extending through said slots between said ears of said body portion and underlying said track, and

means connecting said body portion and the underlying plate member thereof moving said arms toward and away from engagement with said track.

2. The structure set forth in claim 1, said means comprising a rotatable cam rivet having an inclined shoulder formed at the under side of its head portion.

3. A hinge structure in connection with a window frame having an awning type window sash comprising.

an elongated plate member,

a side portion of said plate member angled upwardly and reversely curved inwardly to form a channel and a depending flange spaced at its free end from said plate member, said flange forming a track,

a shoe in connection with said plate member comprising a body portion formed as a plate member having a downwardly angled outwardly reversely curved side portion forming a channel and an upwardly extending flange,

said curved side portion having transverse slots therethrough forming spaced ears of said flange,

said ears being disposed in said channel of said elongated plate member and said track being disposed in said channel of said shoe,

said body portion having an indentation centrally thereof inclined downwardly in a direction away from said cars,

a plate member underlying said body portion having arms extending between said spaced ears and under lying said track,

a rotatable cam rivet disposed through said indentation and connecting said body portion of said underlying plate member,

said rivet having an inclined shoulder overlying the surface of said indentation and'being angled to coincide with the angle of said indentation when said rivet is in one position and said shoulder has an angular relationship to the surface of said indentation when said rivet is rotated away from said first mentioned point whereby rotation of said rivet moves said arms toward and away from engagement with said track.

4. The structure set forth in claim 3, said underlying plate bears against the lower surface of said indentation as against a fulcrum point whereby said rivet tilts said arms toward and away from engagement with said track.

References Cited in the file of this patent UNITED STATES PATENTS 2,749,578 Lickteig June 12, 1956 3,052,931 Ewing Sept. 11, 1962 

1. A HINGE STRUCTURE IN CONNECTION WITH A WINDOW FRAME HAVING AN AWNING TYPE WINDOW SASH COMPRISING AN ELONGATED PLATE MEMBER ATTACHED TO A SIDE PORTION OF SAID WINDOW FRAME, A SHOE SLIDABLY CONNECTED TO SAID PLATE MEMBER, SAID SASH AT ITS UPPER RAIL PORTION BEING PIVOTED TO SAID SHOE, AN ARM LINKING SAID SASH AND SAID SIDE OF SAID WINDOW FRAME BELOW THE POINT OF TRAVEL OF SAID SHOE, SAID ELONGATED PLATE MEMBER COMPRISING A SIDE PORTION ANGLED UPWARDLY AND REVERSELY CURVED INWARDLY TO CORM A CHENNEL AND A DEPENDING FLANGE SPACED AT ITS FREE END FROM THE BASE OF SAID PLATE MEMBER AND FORMING A TRACK, SAID SHOE COMPRISING A BODY PORTION FORMED AS A PLATE MEMBER HAVING A DOWNWARDLY ANGLED OUTWARDLY REVERSELY CURVED SIDE PORTION FORMING A CHANNEL, SAID CURVED SIDE PORTION OF SAID SHOE HAVING TRANSVERSE SLOTS THEREINL FORMING SPACED EARS OF SAID CURVED SIDE PORTION, SAID EARS BEING DISPOSED IN SAID CHANNEL OF SAID FIRST MENTIONED PLATE MEMBER AND SAID TRACK BEING DISPOSED IN SAID CHANNEL OF SAID SHOE, A PLATE MEMBER UNDERLYING SAID BODY PORTION HAVING ARM PORTIONS EXTENDING THROUGH SAID SLOTS BETWEEN SAID EARS OF SAID BODY PORTION AND UNDERLYING SAID TRACK, AND MEANS CONNECTING SAID BODY PORTION AND THE UNDERLYING PLATE MEMBER THEREOF MOVING SAID AMRS TOWARD AND AWAY FROM ENGAGEMENT WITH SAID TRACK. 